9870669 has 6 divisors (see below), whose sum is σ = 14257646. Its totient is φ = 6580440.

The previous prime is 9870661. The next prime is 9870673. The reversal of 9870669 is 9660789.

It can be written as a sum of positive squares in only one way, i.e., 5008644 + 4862025 = 2238^2 + 2205^2 .

It is not a de Polignac number, because 9870669 - 2³ = 9870661 is a prime.

It is a super-2 number, since 2×9870669² = 194860213015122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9870661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 548362 + ... + 548379.

Almost surely, 2^9870669 is an apocalyptic number.

It is an amenable number.

9870669 is a deficient number, since it is larger than the sum of its proper divisors (4386977).

9870669 is a wasteful number, since it uses less digits than its factorization.

9870669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096747 (or 1096744 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 9870669 is about 3141.7620852000. The cubic root of 9870669 is about 214.5106519887.

The spelling of 9870669 in words is "nine million, eight hundred seventy thousand, six hundred sixty-nine".